The Lemur device is a multitouch surface on which it is possible to upload interfaces. It can connect to ethernet and communicate with other devices through osc (and also midi).
We had the chance to play with one during a whole week. We were able to make some of our applications osc-controlled, with Processing and Vision Factory (Metaballs among others). Of course we barely resisted to use the device as another pixel-based display, we ended up coding a wired cube and ... a tetris !